class MyRunnable implements Runnable{

    @Override
    public void run() {
        while(true){
            System.out.println("hello runnable");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
        }
    }
}
public class ThreadDemo2 {
    public static void main(String[] args) throws InterruptedException {
          //第二种写线程办法Runnable
           Runnable runnable=new MyRunnable();
           Thread t=new Thread(runnable);
           t.start();
           while (true){
               System.out.println("hello main");
               Thread.sleep(1000);
           }
    }
}
